Visualization of three-dimensional cardiac electrical excitation using standard heart model and anterior and posterior magnetocardiogram

The International Journal of Cardiovascular Imaging
K OgataI Yamaguchi

Abstract

Our aim in this study is to obtain novel three-dimensional (3-D) images of cardiac electrical excitation that include morphological information on the whole heart. We obtain these 3-D images by projecting anterior and posterior two-dimensional (2-D) current-arrow maps (CAMs) onto a 3-D standard heart model. This standard heart model is adjusted to the individual subject's heart position by using the coordinates of the sinus node, which are obtained from magnetocardiogram (MCG) signals. The anterior and posterior CAMs are calculated by taking the orthogonal partial derivatives of the normal component of the anterior and posterior MCGs. After adjusting the base current values of the anterior and posterior CAMs, the adjusted CAMs are projected onto the standard heart model. We generated the projected CAMs (PCAMs) of the six phases (atrial, and ventricular, excitation) for seven healthy subjects. The validity of PCAM was evaluated by extracting the maximal current directions and positions from the PCAMs. The maximal current directions and positions during each excitation phase were almost in the same in the seven healthy subjects. Therefore, the PCAMs give us a clear view of the anterior and posterior myocardial excitation for the ...Continue Reading

References

Jan 1, 1976·Journal of Electrocardiology·H Hosaka, D Cohen
Jun 1, 1970·Circulation·D DurrerR C Arzbaecher
May 1, 1994·Clinical Cardiology·M NomuraH Nishitani
Jan 28, 1998·IEEE Transactions on Bio-medical Engineering·F Greensite, G Huiskamp
Sep 25, 1998·Medical & Biological Engineering & Computing·R HrenB M Horácek
Jul 9, 1999·IEEE Transactions on Bio-medical Engineering·A van Oosterom
Jul 25, 2000·Circulation·Y KobayashiJ Yoshikawa
Oct 25, 2000·Circulation·J E BurnesY Rudy
Jul 19, 2002·The International Journal of Cardiovascular Imaging·Masato SatoKeiji Tsukada
Jul 23, 2002·Journal of Applied Physiology·Jonathan LessickShlomo A Ben-Haim
Oct 11, 2002·IEEE Transactions on Bio-medical Engineering·Robert ModrePaul Wach
Feb 3, 2004·Europace : European Pacing, Arrhythmias, and Cardiac Electrophysiology : Journal of the Working Groups on Cardiac Pacing, Arrhythmias, and Cardiac Cellular Electrophysiology of the European Society of Cardiology·S YamadaI Yamaguchi

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Citations

Jun 10, 2006·The International Journal of Cardiovascular Imaging·Riccardo Fenici, Donatella Brisinda
Nov 1, 2008·Annals of Noninvasive Electrocardiology : the Official Journal of the International Society for Holter and Noninvasive Electrocardiology, Inc·Akihiko KandoriIwao Yamaguchi

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